Part Number QAPR18A090S, Single Concentric Four-Bolt Pillow Block On The Timken Company


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	Part Number QAPR18A090S, Single Concentric Four-Bolt Pillow Block

Timken-Mounted-Bearing-Single-Concentric-Four-Bolt-Pillow-Block

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Single Concentric Four-Bolt Pillow Block - Dimensional Drawing

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Specifications · Dimensions · Radial and Thrust Factors · Engineering Seal Speed · Engineering Bearing Attributes · Engineering Internal Radial Clearance

Specifications

Engineering Group		Mounted Bearing

Bearing Number		22218

Shaft Size		90 mm

Shaft Size Type		Metric

Full Timken Part Number		QAPR18A090SB QAPR18A090SC QAPR18A090SEB QAPR18A090SEC QAPR18A090SEM QAPR18A090SEN QAPR18A090SEO QAPR18A090SET QAPR18A090SM QAPR18A090SN QAPR18A090SO QAPR18A090ST

Locking Style		Single Concentric

Housing Construction		Four-Bolt Pillow Block

UPC Code		0883450049108 0883450049115 0883450049139 0883450049146 0883450049153 0883450049160 0883450049177 0883450049184 0883450189828 0883450189934 0883450267182 0883450267298

Dimensions

Dimension A		3.75 in 95.3 mm

Dimension B		7.69 in 195.3 mm

Dimension C		5.13 in 130.3 mm

Dimension D Min		9.25 in 235 mm

Dimension D Max		11.25 in 285.8 mm

Dimension E		2.38 in 60.5 mm

Dimension F		13.63 in 346.2 mm

Dimension G		3.75 in 95.3 mm

Dimension H		1.56 in 39.6 mm

Dimension J (Bolt Size)		0.75 in 20 mm

Dimension KA		1.44 in 36.6 mm

Dimension L		4.47 in 113.5 mm

Dimension M		2.59 in 65.8 mm

Dimension RA		0.31 in 7.9 mm

Dimension SA		4.03 in 102.4 mm

Radial and Thrust Factors

C0 - Static Load		87200 lbf 388000 N

C - Dynamic Load (Basic)		79700 lbf 355000 N

e - Geometry Factor		0.23

Y1 - Geometry Factor		2.90

Y2 - Geometry Factor		4.31

Engineering Seal Speed

Oil Lubrication - M/N Seal		1400 rpm

Oil Lubrication - T Seal		2400 rpm

Oil Lubrication - B/C/O Seal		1000 rpm

Grease Lubrication - M/N Seal		1400 rpm

Grease Lubrication - T Seal		2000 rpm

Grease Lubrication - B/C/O Seal		1000 rpm

Engineering Bearing Attributes

Float		0.083 in 2.108 mm

Shaft Tolerance		0.0030 in 0.076 mm

Engineering Internal Radial Clearance

Eng Internal Radial Clearance - Min		0.0024

Eng Internal Radial Clearance - Max		0.0039

Pre Install Clearance Min		0.0024 in 0.060 mm

Pre Install Clearance Max		0.0039 in 0.100 mm

VIEW CAD DRAWING



· 3D


· 2D Front View


· 2D Left View


· 2D Sales Drawing

DOWNLOADS


		Bearing Life Calculation Tool

		Primary Sealing (PDF, 280KB)

		TIMKEN® SPHERICAL ROLLER BEARING SOLID-BLOCK MOUNTED BEARINGS

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Part Number QAPR18A090S, Single Concentric Four-Bolt Pillow Block

Engineering Group

Bearing Number

Shaft Size

Shaft Size Type

Full Timken Part Number

Locking Style

Housing Construction

UPC Code

Dimension A

Dimension B

Dimension C

Dimension D Min

Dimension D Max

Dimension E

Dimension F

Dimension G

Dimension H

Dimension J (Bolt Size)

Dimension KA

Dimension L

Dimension M

Dimension RA

Dimension SA

C0 - Static Load

C - Dynamic Load (Basic)

e - Geometry Factor

Y1 - Geometry Factor

Y2 - Geometry Factor

Oil Lubrication - M/N Seal

Oil Lubrication - T Seal

Oil Lubrication - B/C/O Seal

Grease Lubrication - M/N Seal

Grease Lubrication - T Seal

Grease Lubrication - B/C/O Seal

Float

Shaft Tolerance

Eng Internal Radial Clearance - Min

Eng Internal Radial Clearance - Max

Pre Install Clearance Min

Pre Install Clearance Max